Grain-car door



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C. FLAGSTAD GRAIN CAR DOOR Fi led Sept. 17. 1923 Aug. 31 1926.

Aug. 31' 1926. 1,598,430

c. FLAGSTAD GRAIN CAR DOOR Patented Aug. 31, 1926.

UNITED STATES PTENT OFFICE...

CORNELL FLAGSTAD, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE-HALF TO JOHN P. JACOBSEN, OF MINNEAPOLIS, MINNESOTA.

GRAIN-CAR DOOR.

Application filed September 17, 1923.

This invention relates to improvements in grain doors for grain cars and the like,v and the main object is to provide a simple, practical and efficient door construction and improved means of a novel character for hanging and locking it in a frame which may be detachably secured on the inside of an ordinary box car or grain cardoor frame. Further objects will be disclosed in the course of the following specification, reference being had to the accompanying drawings, wherein:

Fig. 1 is an elevation of a device embodying my invention, fractional portions being broken away for illustrative purposes.

Fig. 2 is a detail elevation showing a modification in the bail or lever construction.

Fig. 3 is a top view of the bail portion shown in Fig. 2.

Fig. 4 is an enlarged detail section on the lineP l in Fig. 1, but showing a modification int he door locking device.

Figs. 5 and 6 are plan and sectional elevations, respectively, of a further modification of the structure shown in Fig. 4.

Figs. 7 and 8 are enlarged views similar to Figs. 5 and 6, showing additional modifications.

Fig. :9 is an enlarged sectional view on the line 99 in Fig. 1, but showing the door in an open position.

Fig. 10 is a fractional elevation of the left end of the door and frame, illustrating other modifications. p v

Fig. 11 is a sectional view as seen substantially on the line 1111 in Fig. 10.

Fig. 12 is an enlarged section on the line 12'12 in Fig. 10. g

Fig. 13 is an elevation ofa door structure ilustrating a further modification of the securing means. g

' Fig. 1 1 is an enlarged-sectional view on the line 14.-'14 in Fig. 13, with portions broken out.

Fig. 15'is an enlarged detail section on the line iii-15 in Fig; 13.

Fig. 16 shows a modification of the lower end of the structure shown in 13. I

Fig. 17 is an enlarged detail section on the line 17-17 in Fig. '1, showing the frame securing means.

Fig. 18 is a face view of the device shown "in Fig. 17, as seen from the right, and with the plate 47 in a raised position.

Serial No. 663,136.

Figs. 19 and 20 show modifications of the device illustrated in Figs. 17 and 18.

Referring to the drawings more particularly and by reference characters, A designates a grain car in the doorway of which is arranged a frame B having mounted therein my improved door C. It may be stated that the door C and frame B may be made of metal, but they are here shown as constructed of wood, because when so made the construction may be made to certain advantages. Thus, for instance, the door is made up of several laminations of wood strips or boards,'the major portion of which extend horizontally or longitudinally with respect to the door, so that if the door should become wet from rain the wood will not expand horizontally and thus tend to tighten the ends of the door in the frame.

The frame ends may also include horizontally grained blocks 21 so that any expansion thereof will be vertical and not horizontal against the door ends.

The door opening of the frame B is provided at its sides with inward flanges 22 against which the door 0 stops,- thus insuring a tight joint at the ends of the door, while the upper edge of the door is preferably provided with an innerflange23 adapted to engage in a recess 24 in the back of the frame, when the door is swung in, to insure a tight joint at the upper end of the door (see Figs. 12, 13 and l t). The door is preferably hinged in the frame, but may be loose as in Figs. 13, 14 and 15, so that the vertical flanges 22 will act as fnlcrums when the door is locked into place. The hinge construction may be of various types, as shown in Figs. 1, 9, 10, 11 and 12. Thus in Figs. 1 and 9 the pipe or bar25 is rigidly arranged in the frame, and

the door is hingedly secured thereon by.

straps 26. It will be noted that as the bar 25 is arranged at the front edge of the upper end of the door when the door is opened said upper end will slant into the car thus preventing any grain from lodging in the joint. In Figs. 10, 11 and 12 the hinge consists of short shafts 27 at the ends of the door which are vertically movable and guided in slots 28 in the frame, and flexible hinges '29 connecting the door to the frame. In this manner the door may be dropped down sufliciently, when opened, to permlt any grain lodged in the joint, to pass out,

Cir

thus clearing it so that the door may again be easily shut. The type of hinge shown in Figs. 1 and 9 is preferably used for heavy doors, while the other types are more desirable for light doors.

The means for locking the door, and the various modifications thereof, will now be described. Referring for the moment to Figs. 1 and 9, it will be seen that a bail or lever 30 is hinged at its ends, by brackets 31, to the frame I5 imn'iediately below the door C, and extends upwardly with-its middle portion engaging in. a suitable catch 32 on the door. Thus the greatest leverage of the bail will be directly against the lower edge of the door, which may have abu ting irons 33, and insures a tight closing of the same. The catch 32, as indicated in Fig. 5), is preferably formed of a piece of strap iron bent to form a pocket for the bail, and a spring held manually operated slide 34 which locks the bail in its pocket. The slide may have a seal hole 35. The inner face of the door is provided with a notch 36 to receive the bail 30, when it is desired to hold the door open, as shown in Fig. 9. In Figs. 10 and 11 the bail 30 is shown to be hooked onto the frame so that it may be removed by first being swung down, as in Fig. 11. here a' very strong bail is desired it may be found desirable to make it of angle iron, as shown in Figs. 2 and 3.

In the modification shown in Fig. 4 the bail 30 is mounted on the door itself and is provided with a hook 30 to engage a hasp 37 which is pivotally secured on the frame 13. Thus when the door has been shut the hasp is brought up and is secured by the hook 30 of the bail which is then looked in any suitable manner such as above described. Figs. 5 and 6 show hasps 37 which are similar to that shown in Fig. 4. but instead of using a single bail, such as 30*, I find it preferable under some circumstances to use a securing device for each hasp, consisting of a finger or bar 38, which is pivoted on the door. and which after being sent into the hasp is pushed up into a clasp 32, which may be similar to the clasp 32, above described. In this event, as no bail is used. two clasps 32, one for each member 38, will he required.

In the modification shown in Figs. 7 and 8 each end of the bail 30 is pivot-ally mounted in a small casting 39 in which is slidably retained a bolt 40 adapted to engage in a member 41 on the frame B. The bolt is provided with a perforation in which is retained a cam acting finger 42 formed integral with the bail 30 Thus when the door is shut and the bail is raised up into locking position thereagainst it forces the bolt down in tlo the member 41, thus securely locking the oor.

In Figs. 13, 14, 15 and 16 the bail 30 consists of three wooden strips secured together in the form of a triangle whose upper corner is secured to the door by a hand operated bolt 32". The ends of the bail are pivotally secured as at 42 to the door, and are provided with tongues 43 adapted to engage in sockets 44 formed by metal strips 45 on the frame. In Fig. 16 the tongue 43" is shown to extend the entire length of the bail and engages in a recess back of a long strip 45 on the frame, thus insuring a tight joint at the lower end of the door. hen the grain is to be dumped out of the car it desirable to use the constructions shown in Figs. 1, 2. 3 and 9, but if suction tubes or other conveying devices are to be used the other types are used as there is then no obstruction for such devices.

The door frame B is secured in place in the car, so that it may readily be removed when so desired, by devices which will now be described and which are shown in Figs. 17 and 18, with modifications as illustrated in Figs. 19 and 20. A plate 46 is secured on the back of the frame, (preferably about one at each corner) and to it is hingedly secured a second plate 47, which plates are normally spring-held together by a spring 48. The plates and. frame are provided with previously drilled holes adapted to loosely receive a nail or spike 49 which is to secure the frame onto the car body. The nail 49, after being inserted in the frame, is driven home into the car frame. When it is desired to remove the door frame B from the car, it is not necessary to injure the frame by forcing a grip on the nail head. It is only necessary to insert a hammer claw under the end of the plate 47, which is a little longer than the plate 46, and pry it up. This will loosen the nail and pull it far enough so that its head can then be properly grasped by the claw hammer or some other suitable pulling device. In the modification shown in Fig. 19 a single plate 47 is hingedly secured to the frame B and operates in substantially the same manner as the plate 47. Instead of projecting beyond a, lower plate, however, it is provided with an offset hook 50, under which an instrument may be used to pry out the nail. Fig. 20 illustrates a further modification of nail releasing device and consists of a plate 46*, secured on the frame, and having a pair of wings or wing plates 51 pivoted thereon and normally spring held together. Notches 52 in the plates 51 form a recess through which the nail shank, but not the head, may pass, so that when the nail is driven home its head will stop against the members 51. Now when it is desired to pull the nail, if the operator will first force the wings apart, which can easily be done with almost any kind of instrument, he will find the nail head spaced far enough from the plate so that it can easily be gripped for pulling.

It is understood that suitable modifications may be made in the general design and struc' tural details of the invention as herein above set forth and described, provided. however, that such modifications come Within the spirit and scope of the appended claims. Having noW therefore fully shoWn and described my invention, What I claim to be new and desire to protect by Letters Patent is:

1. The combination with a primary object adapted to be nailed to a secondary object, of a plate hinged on the primary object having a perforation adapted to receive a nail, and means effected by swinging the plate on its hinge to space the nail head from the primary object so that it may be accessible for extraction.

2. The combination with a primary object adapted to be nailed to a secondary object, said primary object having a perforation adapted to freely receive a nail, a perforated plate hingedly mounted on the primary ob ject, With the said perforations in alignment, and means projecting from the swinging end of the plate for engagement by an instrument to pry the plate up.

In testimony whereof I aflix my signature.

CORNELL FLAGSTAD. 

